Trace number 297590

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
FH 2007-02-08SAT 1.37479 1.37609

General information on the benchmark

Namerandom/OnTreshold/3SAT/v550/
unif-k3-r4.26-v550-c2343-S1166224100-13.SAT.shuffled.cnf
MD5SUM8145f79563f8728b1e47a8c34d5efd7e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.028994
Satisfiable
(Un)Satisfiability was proved
Number of variables550
Number of clauses2343
Sum of the clauses size7029
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32343
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

1.33/1.37	c try 1 flip j 988878
1.33/1.37	c A solution is found
1.33/1.37	s SATISFIABLE
1.33/1.37	v 1 -2 -3 -4 5 -6 -7 8 9 10 11 12 13 -14 -15 -16 17 -18 -19 20 -21 -22 -23 24 -25 -26 -27 -28 29 30 31 32 -33 34 35 -36 37 38 -39 40 41 -42 43 44 -45 46 47 -48 49 -50 -51 52 53 -54 -55 56 -57 -58 -59 -60 -61 -62 -63 -64 65 -66 67 68 -69 70 -71 -72 -73 -74 75 -76 77 -78 -79 80 -81 -82 -83 84 -85 86 87 -88 89 -90 -91 92 -93 -94 -95 96 97 98 -99 100 101 -102 -103 -104 105 -106 -107 -108 109 -110 111 112 -113 114 115 -116 -117 118 -119 -120 -121 122 123 124 125 -126 127 128 129 -130 131 132 133 -134 -135 -136 -137 138 139 140 -141 -142 -143 144 -145 146 147 148 -149 -150 -151 152 -153 -154 155 -156 -157 158 159 160 161 -162 -163 -164 -165 -166 167 168 -169 -170 -171 172 -173 -174 -175 -176 -177 178 -179 180 181 -182 183 184 185 186 187 -188 -189 190 191 -192 193 194 -195 196 -197 198 -199 200 -201 -202 -203 -204 205 206 -207 208 209 210 211 212 -213 -214 -215 -216 -217 218 219 -220 221 222 -223 -224 -225 226 227 -228 229 230 231 232 -233 234 235 -236 237 238 239 -240 241 242 -243 -244 -245 -246 -247 -248 -249 250 251 -252 253 254 255 -256 -257 -258 259 -260 261 -262 263 -264 -265 266 -267 -268 -269 270 -271 -272 273 274 275 -276 277 -278 -279 -280 -281 282 283 -284 285 -286 287 -288 289 290 -291 292 293 294 -295 296 -297 -298 299 300 -301 -302 303 -304 305 -306 307 -308 -309 -310 -311 312 -313 -314 315 316 317 -318 319 320 321 -322 -323 324 -325 326 -327 -328 -329 330 331 332 333 -334 -335 -336 -337 338 -339 340 -341 342 -343 344 -345 -346 -347 348 -349 -350 351 -352 353 354 -355 -356 -357 358 359 360 361 -362 363 -364 365 366 367 368 -369 -370 -371 372 -373 -374 -375 376 377 -378 379 -380 381 -382 -383 384 -385 386 387 388 389 390 391 -392 -393 394 395 396 -397 -398 399 400 401 402 -403 -404 405 -406 407 -408 -409 410 -411 412 413 414 415 -416 417 418 419 -420 421 -422 -423 424 -425 426 427 428 429 -430 -431 -432 433 434 435 436 -437 -438 -439 -440 -441 442 -443 444 445 -446 447 -448 449 450 451 -452 -453 -454 -455 456 -457 -458 -459 460 -461 -462 -463 464 465 -466 467 -468 469 -470 471 472 473 -474 -475 476 -477 478 479 480 481 -482 483 -484 485 486 -487 -488 489 490 491 492 493 494 495 496 497 -498 499 -500 501 -502 -503 -504 505 506 -507 -508 -509 510 -511 512 513 -514 -515 516 517 -518 -519 -520 521 522 -523 -524 -525 -526 -527 528 529 -530 -531 532 -533 534 535 -536 -537 538 -539 540 541 -542 -543 -544 -545 546 547 548 549 550 
1.33/1.37	v 0 
1.33/1.37	c Done (mycputime is 0.000 seconds)

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node65/watcher-297590-1171841632 -o ROOT/results/node65/solver-297590-1171841632 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/297590-1171841632/FH /tmp/evaluation/297590-1171841632/instance-297590-1171841632.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 1.07 1.86 3/64 28953
/proc/meminfo: memFree=802040/2055920 swapFree=4183880/4192956
[pid=28953] ppid=28951 vsize=244848 CPUtime=0
/proc/28953/stat : 28953 (FH) R 28951 28953 28429 0 -1 4194304 130 0 0 0 0 0 0 0 18 0 1 0 204120803 250724352 113 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134523624 0 0 4096 0 0 0 0 17 0 0 0
/proc/28953/statm: 61212 113 36 103 0 60716 0

[startup+0.107155 s]
/proc/loadavg: 0.92 1.07 1.86 3/64 28953
/proc/meminfo: memFree=802040/2055920 swapFree=4183880/4192956
[pid=28953] ppid=28951 vsize=246532 CPUtime=0.1
/proc/28953/stat : 28953 (FH) R 28951 28953 28429 0 -1 4194304 205 0 0 0 10 0 0 0 18 0 1 0 204120803 252448768 185 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134552400 0 0 4096 0 0 0 0 17 0 0 0
/proc/28953/statm: 61633 185 40 103 0 61137 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246532

[startup+0.518221 s]
/proc/loadavg: 0.92 1.07 1.86 3/64 28953
/proc/meminfo: memFree=802040/2055920 swapFree=4183880/4192956
[pid=28953] ppid=28951 vsize=246532 CPUtime=0.51
/proc/28953/stat : 28953 (FH) R 28951 28953 28429 0 -1 4194304 205 0 0 0 51 0 0 0 22 0 1 0 204120803 252448768 185 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134554854 0 0 4096 0 0 0 0 17 0 0 0
/proc/28953/statm: 61633 185 40 103 0 61137 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 246532

[startup+1.33936 s]
/proc/loadavg: 0.92 1.07 1.86 2/65 28954
/proc/meminfo: memFree=801200/2055920 swapFree=4183880/4192956
[pid=28953] ppid=28951 vsize=246532 CPUtime=1.33
/proc/28953/stat : 28953 (FH) R 28951 28953 28429 0 -1 4194304 205 0 0 0 133 0 0 0 25 0 1 0 204120803 252448768 185 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134558740 0 0 4096 0 0 0 0 17 0 0 0
/proc/28953/statm: 61633 185 40 103 0 61137 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 246532

Solver just ended. Dumping a history of the last processes samples

[startup+1.33936 s]
/proc/loadavg: 0.92 1.07 1.86 2/65 28954
/proc/meminfo: memFree=801200/2055920 swapFree=4183880/4192956
[pid=28953] ppid=28951 vsize=246532 CPUtime=1.33
/proc/28953/stat : 28953 (FH) R 28951 28953 28429 0 -1 4194304 205 0 0 0 133 0 0 0 25 0 1 0 204120803 252448768 185 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134558740 0 0 4096 0 0 0 0 17 0 0 0
/proc/28953/statm: 61633 185 40 103 0 61137 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 246532

Child status: 10
Real time (s): 1.37609
CPU time (s): 1.37479
CPU user time (s): 1.37279
CPU system time (s): 0.001999
CPU usage (%): 99.9059
Max. virtual memory (cumulated for all children) (KiB): 246532

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.37279
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 218
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 8
involuntary context switches= 3

runsolver used 0.000999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node65 on Sun Feb 18 23:33:53 UTC 2007

IDJOB= 297590
IDBENCH= 19965
IDSOLVER= 117
FILE ID= node65/297590-1171841632

PBS_JOBID= 3839712

Free space on /tmp= 66558 MiB

SOLVER NAME= FH 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v550/unif-k3-r4.26-v550-c2343-S1166224100-13.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/297590-1171841632/FH /tmp/evaluation/297590-1171841632/instance-297590-1171841632.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node65/watcher-297590-1171841632 -o ROOT/results/node65/solver-297590-1171841632 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/297590-1171841632/FH /tmp/evaluation/297590-1171841632/instance-297590-1171841632.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  8145f79563f8728b1e47a8c34d5efd7e

RANDOM SEED= 240434767

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node65.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.259
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.259
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        802384 kB
Buffers:         49600 kB
Cached:        1073512 kB
SwapCached:       2900 kB
Active:         799904 kB
Inactive:       332752 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        802384 kB
SwapTotal:     4192956 kB
SwapFree:      4183880 kB
Dirty:            6204 kB
Writeback:           0 kB
Mapped:          15548 kB
Slab:           106868 kB
Committed_AS:   514452 kB
PageTables:       1456 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66558 MiB

End job on node65 on Sun Feb 18 23:33:54 UTC 2007